solar tracker by kanav mansotra

solar tracker by kanav mansotra

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  SOLAR TRACKING SYSTEMUSING MICROCONTROLLER 1
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  THE SOLAR OPTION: Solar energy is a very large, inexhaustible source of energy. The power from the sun intercepted by the earth is many thousands of times larger than the present consumption rate on the earth of all commercial energy sources.  Solar energy could supply all the present and future energy needs of the world on a continuing basis. This makes it one of the most promising of the unconventional energy sources.  It has two other factors in the favour: i. Firstly, unlike fossil fuels and nuclear power, it is environmentally clean source of energy. ii.Secondly, it is free and available in adequate quantities in almost all parts of the world where people live. Also it has no heavy mechanical section and is free from noise. 2
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  OBJECTIVE  The aimof our projects is to utilize the maximum solar energy through solar panel. For this a digital based automatic sun tracking system is proposed.  The solar panel tracks the sun from east to west automatically for maximum intensity of light.  Processes Involved are-: i. To fabricate a Stepper motor control interfaced with driver circuit. ii. To construct a model prototype solar cell movement system with a mechanical assemble to move the panel from 180⁰ E to W. iii.To design an electronic circuit to sense the intensity of light and to control stepper motor driver for the panel movement. 3
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  How the Trackerfollow the Sun: 1.Sunrise "Wake- Up: The Track Rack begins the day facing west. As the morning sun rises, the sun rays falls on the LDR, it detects and sends signal to stepper motor to turn towards the east. 2. Mid-Morning: As the sun rises, the LDR also detect the angle, where its getting maximum efficiency and correspondingly move towards that direction. 3. Mid-Afternoon: As the sun moves, the Track Rack follows (at approximately 15o per hour, continually moving from one side to another. 4. Sunset: The Track Rack completes its daily cycle facing west. It remains in this position overnight until it is "awakened" by the rising sun the following morning. 4
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  CIRCUIT AND WORKING 5
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  BLOCK DIAGRAM6 MICROCONTROLLERLDR 2 POWER SUPPLY DRIVER STEPPER MOTOR LDR1 COMPARATOR
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  System Concept  Ourdesign of Solar Tracker is to develop and implement a simplified diagram of a horizontal axis and active tracker method type of solar tracker fitted to a panel. It will be able to navigate to the best angle of exposure of light from the torchlight. A pair of sensors is used to point the East and West of the location of the light. A scaled-down model of a prototype will be designed and built to test the workability of the tracking system. The center of the drive is a DC motor. Figure shows a schematic diagram of a horizontal-axis solar tracker. This will be controlled via microcontroller program. The designed algorithm will power the motor drive after processing the feedback signals from the sensor array. 7
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  Flowchart 8
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  CIRCUIT DIAGRAM9
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  PROGRESS  We arestudying on various IEEE research papers about our Project and related topics to our project. We are studying for the assembly language program to implement in our project. We have made the simplified algorithm with flowchart for our project. We have bought some of our Components but till now we have not got all the components. As soon as we receive all the components we will start working on the hardware section. 10
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  CONCLUSION  We presenteda means of tracking the sun’s position with the help of microcontroller. Specially, it demonstrates a working software solution for maximizing solar cell output by positioning a solar panel at the point of maximum light intensity.  Moreover, the tracker can initialize the starting position itself which reduce the need of any more photo resistors.  Though the prototype has limitations in hardware areas as an initial set up, still it provides an opportunity for improvement of the design methodology in future. 11
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  THANK YOU 12